summaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/reg.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/include/asm/reg.h')
-rw-r--r--arch/powerpc/include/asm/reg.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 2220f7a60..c4cb2ffc6 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1194,12 +1194,20 @@
#define __mtmsrd(v, l) asm volatile("mtmsrd %0," __stringify(l) \
: : "r" (v) : "memory")
#define mtmsr(v) __mtmsrd((v), 0)
+#define __MTMSR "mtmsrd"
#else
#define mtmsr(v) asm volatile("mtmsr %0" : \
: "r" ((unsigned long)(v)) \
: "memory")
+#define __MTMSR "mtmsr"
#endif
+static inline void mtmsr_isync(unsigned long val)
+{
+ asm volatile(__MTMSR " %0; " ASM_FTR_IFCLR("isync", "nop", %1) : :
+ "r" (val), "i" (CPU_FTR_ARCH_206) : "memory");
+}
+
#define mfspr(rn) ({unsigned long rval; \
asm volatile("mfspr %0," __stringify(rn) \
: "=r" (rval)); rval;})
@@ -1207,6 +1215,15 @@
: "r" ((unsigned long)(v)) \
: "memory")
+extern void msr_check_and_set(unsigned long bits);
+extern bool strict_msr_control;
+extern void __msr_check_and_clear(unsigned long bits);
+static inline void msr_check_and_clear(unsigned long bits)
+{
+ if (strict_msr_control)
+ __msr_check_and_clear(bits);
+}
+
static inline unsigned long mfvtb (void)
{
#ifdef CONFIG_PPC_BOOK3S_64